CN107022787A - Frock and application method that hydraulic jack surfaces externally and internally is electroplated simultaneously - Google Patents
Frock and application method that hydraulic jack surfaces externally and internally is electroplated simultaneously Download PDFInfo
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- CN107022787A CN107022787A CN201710135471.7A CN201710135471A CN107022787A CN 107022787 A CN107022787 A CN 107022787A CN 201710135471 A CN201710135471 A CN 201710135471A CN 107022787 A CN107022787 A CN 107022787A
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- hydraulic jack
- electroplating
- conductive pole
- cylinder
- frock
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D17/00—Constructional parts, or assemblies thereof, of cells for electrolytic coating
- C25D17/06—Suspending or supporting devices for articles to be coated
- C25D17/08—Supporting racks, i.e. not for suspending
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D7/00—Electroplating characterised by the article coated
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- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electroplating Methods And Accessories (AREA)
Abstract
The invention discloses the frock application method that a kind of hydraulic jack surfaces externally and internally is electroplated simultaneously, conductive pole is put into the cylinder body of hydraulic jack first, the bolt of conductive pole lower surface is passed from the cylinder bottom valve opening of hydraulic jack, then by external screw thread ring set with the cylinder of hydraulic jack is intraoral is threadedly coupled, insulation sleeve is connected on bolt, finally suspension hook is suspended on the cathode bar of electroplating bath, cylinder body of hydraulic oil cylinder is placed in the electroplating bath, is connected conductive pole with anode of electrolytic cell by wire.The invention has the advantages that changing existing hydraulic jack electroplating copper tin alloy technological process, therefore, processing, the transhipment for reducing hydraulic jack are frequent, once upper electroplating assembly line can complete to carry out electroplating copper tin alloy to hydraulic jack, hydraulic jack electroplating efficiency and transport efficacy more than 50% are improved, production cost declines about 30%.Meanwhile, the deficiency of signal bronze plating can not be carried out by solving hydraulic jack bottom valve hole, extend life of product.
Description
Technical field
The present invention relates to the frock that mining hydraulic oil cylinder bronze (copper-tin alloy) electroplating is used, the invention further relates to the user of the frock
Method.
Background technology
Cu-sn alloy coating possesses good corrosion resistance, obtains wide in coal-mine hydraulic support column and jack at present
General application, particularly in the Minepit environments such as hot and humid, high chloride ion, high sulfate ion, the superiority that it possesses is more
It is prominent.
For hydraulic support column oil cylinder, wherein cylinder body inner and outer surfaces can using bronze (copper-tin alloy) electroplating bottoming set hard chrome process
Improve the service life of cylinder body in its corrosion resistance, extension.Cylinder body electroplating technology is in traditional hydraulic support column：In middle cylinder body
Hole finishing, cylindrical roughingHole plating copper tin alloy in middle cylinder bodyCylinder body cylinder bottom in weldingCylinder body in finishing
It is cylindricalMiddle cylinder justifies bronze (copper-tin alloy) electroplating in vitro.Due to electroplate use frock limitation, can only in welding cylinder body cylinder bottom it
It is preceding first to carry out endoporus electroplating copper tin alloy, cylinder body cylinder bottom in then welding, then finish middle cylinder and justify in vitro, last centralizing cylinder is external
Circle carries out electroplating copper tin alloy.It is above-mentioned to be to the deficiency that cylinder body electroplating technology in hydraulic support column is present：1st, workpiece transhipment frequency
It is numerous, low production efficiency；2nd, upper electroplating assembly line twice is needed, the electroplating work procedure cost time is longer, and electroplating efficiency is low；3rd, middle cylinder body
The bottom valve bore dia of cylinder bottom is smaller, it is impossible to carry out signal bronze plating, and corrosion phenomena occurs in bottom valve hole during causing use, contracting
Short product life.
The content of the invention
Present invention aims at the frock that a kind of hydraulic jack surfaces externally and internally is electroplated is provided simultaneously, the object of the invention is also resided in
The application method of the frock is provided, the deficiency of signal bronze plating can not be carried out by solving hydraulic jack bottom valve hole, extend production
The product life-span.
To achieve the above object, the present invention takes following technical proposals：
The frock that hydraulic jack surfaces externally and internally of the present invention is electroplated simultaneously, including negative electrode connection unit and auxiliary anode unit；
The negative electrode connection unit includes external screw thread ring set, and the upper surface of the external screw thread ring set is welded with carrier, the carrier
Top is welded with suspension hook positioned at external screw thread ring set position of center line, and carrier passes through insulating element and the auxiliary anode unit phase
Connection；The auxiliary anode unit is by being welded on along the down-set conductive pole of external screw thread ring set center line and vertically downward institute
State the bolt of conductive pole lower surface and the insulation sleeve being threaded on the bolt is constituted.
The carrier is character "door" form structure.
Multiple pod apertures are offered vertically on the side wall of the insulation sleeve.
The insulating element is made up of cleat insulator, by alignment pin with being welded on carrier at the top of the cleat insulator
Connecting plate fix, cleat insulator bottom is fixed by alignment pin with being welded on the connecting plate of the conductive pole upper surface.
The conductive pole, is put into the cylinder body of the hydraulic jack by the application method of electroplating tooling of the present invention first
Interior, the bolt of conductive pole lower surface is passed from the cylinder bottom valve opening of hydraulic jack, then by the external screw thread ring set and hydraulic pressure
The intraoral threaded connection of the cylinder of oil cylinder, the insulation sleeve is connected on bolt, the suspension hook is finally suspended on to the moon of electroplating bath
On the thick stick of pole, cylinder body of hydraulic oil cylinder is placed in the electroplating bath, is connected conductive pole with anode of electrolytic cell by wire.
The cylinder body outer round surface of the hydraulic jack is accumulated and the surface area ratio of electroplating bath both sides positive plate is 1:1.5
~2；Relation between the diameter d of the conductive pole and the cylinder inner bore diameter D of hydraulic jack is：0.33D ＜ d ＜ 0.5D.
The invention has the advantages that existing hydraulic jack electroplating copper tin alloy technological process is changed, using frock of the present invention
Hydraulic jack electroplating copper tin alloy technological process afterwards is：Finishing of internal diameter, cylindrical roughingWeld cylinder bottomFinishing
It is cylindricalSurfaces externally and internally is while electroplating copper tin alloy.Therefore, processing, the transhipment for reducing hydraulic jack are frequent, once upper electricity
Plating production line can complete to carry out electroplating copper tin alloy to hydraulic jack, improve hydraulic jack electroplating efficiency and transport efficacy
More than 50%, production cost declines about 30%.Meanwhile, signal bronze plating can not be carried out not by solving hydraulic jack bottom valve hole
Foot, extends life of product.
Brief description of the drawings
Fig. 1 is the structural representation of electroplating tooling of the present invention.
Fig. 2 is Fig. 1 left view structural representation（Conceal a font carrier armstand）.
Fig. 3 is the dimensional structure diagram of electroplating tooling of the present invention.
Fig. 4 is the structural representation of cylinder body of hydraulic oil cylinder of the present invention.
Fig. 5 is the structural representation that cylinder body of hydraulic oil cylinder of the present invention is arranged on the electroplating tooling.
Embodiment
As Figure 1-5, the frock that hydraulic jack surfaces externally and internally of the present invention is electroplated simultaneously, including negative electrode connection unit
And auxiliary anode unit；The negative electrode connection unit includes external screw thread ring set 1, and the upper surface of external screw thread ring set 1 is welded with a word
Shape carrier, two armstands 2.1,2.2 of door font carrier are mutually welded with external screw thread ring set 1, in the crossbeam 3 of door font carrier
Portion, which is located at the position of center line of external screw thread ring set 1, is welded with suspension hook 4 and connecting plate 5, door font carrier by insulating element with
The auxiliary anode unit is connected；Auxiliary anode unit is by along the down-set and of conductive pole 6 of the center line of external screw thread ring set 1
The insulation sleeve 8 for being welded on the bolt 7 of the lower surface of conductive pole 6 vertically downward and being threaded on bolt 7 is constituted.Insulation division
Part is made up of cleat insulator 9.1,9.2, and the top of cleat insulator 9.1,9.2 is by alignment pin and is welded on a font carrier crossbeam
Connecting plate 5 on 3 is gripped, and cleat insulator 9.1,9.2 bottoms pass through alignment pin and the connection for being welded on the upper surface of conductive pole 6
Plate 10 is gripped.In order that in electroplating process the inside and outside portion's electrodeposit solution of cylinder body of hydraulic oil cylinder 11 diffusion and circulation, make plating
Electroplating solution reaches stabilization in the inside and outside concentration of cylinder body 11 in groove, so that ensure the uniformity of the inside and outside thickness of coating of cylinder body 11,
Offer multiple pod apertures 12 vertically on the side wall of insulation sleeve 8.
The conductive pole 6, is put into the cylinder body of the hydraulic jack by the application method of electroplating tooling of the present invention first
In 11, the bolt 7 of the lower surface of conductive pole 6 is passed outside cylinder bottom from the cylinder bottom valve opening 13 of hydraulic jack, then will be described outer
Screw thread ring set 1 is connected with the intraoral screw thread of the cylinder of hydraulic jack 14, and the insulation sleeve 8 is connected to cylinder body 11 on bolt 7 with leading
Electric post 6 is dielectrically separated from, and finally the suspension hook 4 is suspended on the cathode bar of electroplating bath, cylinder body of hydraulic oil cylinder 11 is placed in into plating
In groove, conductive pole 6 is connected with anode of electrolytic cell by wire.
The outer round surface of cylinder body 11 of the hydraulic jack is accumulated and the surface area ratio of electroplating bath both sides positive plate is：1:1.5
~2；Relation between the diameter d and the diameter of bore D of cylinder body 11 of conductive pole 6 is：0.33D ＜ d ＜ 0.5D, to ensure in cylinder body 11
Hole coating is uniform.
Electroplating copper tin alloy electroplate liquid formulation：
Cuprous cyanide：25-30 g/l；Sodium stannate：11-25 g/l；Cymag：16-30 g/l；
Sodium hydroxide：6-14 g/l.
The process conditions used for：Ampere/square decimeter of current density 3, signal bronze bath temperature is 50-60 DEG C.
Claims (6)
1. the frock that a kind of hydraulic jack surfaces externally and internally is electroplated simultaneously, including negative electrode connection unit and auxiliary anode unit；It is special
Levy and be：The negative electrode connection unit includes external screw thread ring set, and the upper surface of the external screw thread ring set is welded with carrier, described
Carrier top is welded with suspension hook positioned at external screw thread ring set position of center line, and carrier passes through insulating element and the impressed current anode
Unit is connected；The auxiliary anode unit is by welding along the down-set conductive pole of external screw thread ring set center line and vertically downward
The insulation sleeve for being connected on the bolt of the conductive pole lower surface and being threaded on the bolt is constituted.
2. the frock that hydraulic jack surfaces externally and internally is electroplated simultaneously according to claim 1, it is characterised in that：The carrier is
Character "door" form structure.
3. the frock that hydraulic jack surfaces externally and internally according to claim 1 or claim 2 is electroplated simultaneously, it is characterised in that：The insulation
Multiple pod apertures are offered vertically on the side wall of set.
4. the frock that hydraulic jack surfaces externally and internally according to claim 1 or claim 2 is electroplated simultaneously, it is characterised in that：The insulation
Part is made up of cleat insulator, is fixed at the top of the cleat insulator by alignment pin and the connecting plate that is welded on carrier, absolutely
Edge clamping plate bottom is fixed by alignment pin with being welded on the connecting plate of the conductive pole upper surface.
5. the application method of electroplating tooling as claimed in claim 1, it is characterised in that：The conductive pole is put into the liquid first
In the cylinder body of compressing cylinder, the bolt of conductive pole lower surface is passed from the cylinder bottom valve opening of hydraulic jack, then by the outer spiral shell
Line ring set with the cylinder of hydraulic jack is intraoral is threadedly coupled, the insulation sleeve is connected on bolt, finally the suspension hook is hung
On the cathode bar of electroplating bath, cylinder body of hydraulic oil cylinder is placed in the electroplating bath, it is by wire that conductive pole and electroplating bath is positive
Pole is connected.
6. the application method of electroplating tooling according to claim 5, it is characterised in that：The cylindrical table of cylinder body of the hydraulic jack
The surface area ratio of area and electroplating bath both sides positive plate is 1:1.5~2；The diameter d and hydraulic jack of the conductive pole
Cylinder inner bore diameter D between relation be：0.33D ＜ d ＜ 0.5D.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710135471.7A CN107022787B (en) | 2017-03-08 | 2017-03-08 | The tooling and application method that hydraulic cylinder surfaces externally and internally is electroplated simultaneously |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710135471.7A CN107022787B (en) | 2017-03-08 | 2017-03-08 | The tooling and application method that hydraulic cylinder surfaces externally and internally is electroplated simultaneously |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107022787A true CN107022787A (en) | 2017-08-08 |
| CN107022787B CN107022787B (en) | 2019-06-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710135471.7A Active CN107022787B (en) | 2017-03-08 | 2017-03-08 | The tooling and application method that hydraulic cylinder surfaces externally and internally is electroplated simultaneously |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109183136A (en) * | 2018-10-29 | 2019-01-11 | 大连海事大学 | A kind of anode construction of large scale Internal hole plating iron reparation and application |
| CN109402687A (en) * | 2018-11-27 | 2019-03-01 | 中国航发贵州黎阳航空动力有限公司 | Ball cup surfaces externally and internally chrome-plating device |
| CN110592645A (en) * | 2019-09-23 | 2019-12-20 | 徐州徐工液压件有限公司 | Novel electroplating hanger for inner wall of oil cylinder |
| CN110886005A (en) * | 2019-12-06 | 2020-03-17 | 隆鑫通用动力股份有限公司 | Anode assembly for cylinder body outside-tank electroplating |
| CN110904477A (en) * | 2019-12-26 | 2020-03-24 | 国营第六一六厂 | Tinned device of thin wall sleeve part hole protection |
| CN112853450A (en) * | 2020-12-29 | 2021-05-28 | 石家庄飞机工业有限责任公司 | Method for manufacturing series-connected auxiliary anode for electroplating of inner hole part |
| CN113502517A (en) * | 2021-06-30 | 2021-10-15 | 郑州煤矿机械集团股份有限公司 | Surface treatment method for electroplating multilayer gradient tin-copper alloy on hydraulic support oil cylinder |
| CN113789555A (en) * | 2021-08-31 | 2021-12-14 | 郑州煤矿机械集团股份有限公司 | Method for electroplating copper-tin alloy on hydraulic oil cylinder |
| CN117947483A (en) * | 2024-03-27 | 2024-04-30 | 山东福阳液压科技有限公司 | Tool for simultaneously electroplating inner surface and outer surface of hydraulic cylinder and application method |
| CN118087004A (en) * | 2024-04-17 | 2024-05-28 | 沂水众鑫机械有限公司 | Hard chromium plating mechanism and process for hydraulic oil cylinder |
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| CN104831325A (en) * | 2015-06-08 | 2015-08-12 | 中国南方航空工业(集团)有限公司 | Output shaft chrome plating method and output shaft chrome plating fixture |
| CN105696061A (en) * | 2016-04-12 | 2016-06-22 | 合肥长源液压股份有限公司 | Electroplating clamp for barrel-shaped workpiece |
| CN206570418U (en) * | 2017-03-08 | 2017-10-20 | 郑州煤矿机械集团股份有限公司 | The frock electroplated simultaneously for hydraulic jack surfaces externally and internally |
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| JPH0435422Y2 (en) * | 1986-12-17 | 1992-08-21 | ||
| CN104831325A (en) * | 2015-06-08 | 2015-08-12 | 中国南方航空工业(集团)有限公司 | Output shaft chrome plating method and output shaft chrome plating fixture |
| CN105696061A (en) * | 2016-04-12 | 2016-06-22 | 合肥长源液压股份有限公司 | Electroplating clamp for barrel-shaped workpiece |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109183136A (en) * | 2018-10-29 | 2019-01-11 | 大连海事大学 | A kind of anode construction of large scale Internal hole plating iron reparation and application |
| CN109402687A (en) * | 2018-11-27 | 2019-03-01 | 中国航发贵州黎阳航空动力有限公司 | Ball cup surfaces externally and internally chrome-plating device |
| CN110592645B (en) * | 2019-09-23 | 2021-08-17 | 徐州徐工液压件有限公司 | Novel electroplating hanger for inner wall of oil cylinder |
| CN110592645A (en) * | 2019-09-23 | 2019-12-20 | 徐州徐工液压件有限公司 | Novel electroplating hanger for inner wall of oil cylinder |
| CN110886005A (en) * | 2019-12-06 | 2020-03-17 | 隆鑫通用动力股份有限公司 | Anode assembly for cylinder body outside-tank electroplating |
| CN110904477A (en) * | 2019-12-26 | 2020-03-24 | 国营第六一六厂 | Tinned device of thin wall sleeve part hole protection |
| CN112853450A (en) * | 2020-12-29 | 2021-05-28 | 石家庄飞机工业有限责任公司 | Method for manufacturing series-connected auxiliary anode for electroplating of inner hole part |
| CN113502517A (en) * | 2021-06-30 | 2021-10-15 | 郑州煤矿机械集团股份有限公司 | Surface treatment method for electroplating multilayer gradient tin-copper alloy on hydraulic support oil cylinder |
| CN113789555A (en) * | 2021-08-31 | 2021-12-14 | 郑州煤矿机械集团股份有限公司 | Method for electroplating copper-tin alloy on hydraulic oil cylinder |
| CN113789555B (en) * | 2021-08-31 | 2022-11-29 | 郑州煤矿机械集团股份有限公司 | Method for electroplating copper-tin alloy on hydraulic oil cylinder |
| CN117947483A (en) * | 2024-03-27 | 2024-04-30 | 山东福阳液压科技有限公司 | Tool for simultaneously electroplating inner surface and outer surface of hydraulic cylinder and application method |
| CN117947483B (en) * | 2024-03-27 | 2024-06-04 | 德普卡勒(中国)机械有限公司 | Tool for simultaneously electroplating inner surface and outer surface of hydraulic cylinder and application method |
| CN118087004A (en) * | 2024-04-17 | 2024-05-28 | 沂水众鑫机械有限公司 | Hard chromium plating mechanism and process for hydraulic oil cylinder |
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| CN107022787B (en) | 2019-06-14 |
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Effective date of registration: 20200728 Address after: 450016 No. ninth, 167 Avenue, Zhengzhou economic and Technological Development Zone, Henan Co-patentee after: Zhengmei Zhiding Hydraulic Co., Ltd Patentee after: ZHENGZHOU COAL MINING MACHINERY GROUP Co.,Ltd. Address before: 450016 No. ninth, 167 Avenue, Zhengzhou economic and Technological Development Zone, Henan Patentee before: ZHENGZHOU COAL MINING MACHINERY GROUP Co.,Ltd. |
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